the blog post has been particularly popular with stanford MBAs, many of whom hope to follow a similar path. i agree that we need more capable people actually building companies that solve problems, but i'm troubled by what appears to be an obvious omission from the story.
although i appreciate the post's sentiment, let's not overlook how much easier it is to embrace this type of advice ("be bold! take risks! follow your passions!") when you have savings from your private equity job to fall back on. the luxury of start-up capital is a very real factor in one's ability to pursue a dream.
there's a saying that it's easy to hit a home run when you're born on third base. similarly, many of the struggles that crush budding entrepreneurs (like overwhelming debt and limited access to talent and partnerships) are greatly ameliorated by access to capital.
i don't mean to diminish the writer's accomplishments -- i admire his drive and tenacity, and it sounds like he created a lot of his success through hard work. but in the viral frenzy to share this feel-good story, i don't want the nuances of reality to get lost: starting a company is hard work, but it's even harder if you truly start from nothing.